Hydraulic nozzle



Patented Dec. 4, 1923.

UNITED STATES PATENT OFFECE..

WILLIAM L. PARKER, OF PALO ALTO, AND ELY C. HUTCHNSON, OF OAKLAND, CALI- FORNIA, ASSIGNORS TO PELTON WATER WHEEL CG., 0F SAN FRANCISCO, CALE- FORNIA., A CORPORATION 0F CALIFORNIA.

HYDRAULC NOZZLE.

Application tiled November To all whom t may concern:

Be it known that we, lViLLiAM L. PARKER and ELY C. HUTCHINSON, the said PARKER a citizen of New Zealand, and the said -HU'roiiiNsoN a citizen of the United States, residing, the. said PARKER at Palo Alto, in the county of Santa Claraand State of California, and thesaid HU'roHINso-N at Oakland, count-y of Alameda, State of California, have invented certain new and useful Improvements iii Hydraulic Nozzles, of which the following is a specification.

The present invention relates to an hydraulic nozzle and needle valve construction designed to enable the nozzle to be positioned with its discharge end in close proximity to the periphery of the water wheel runner and buckets, and at the same time permitting of the deinounting of the nozzle and needle valve when it is desired to renew the worn parts thereof.

l-leretofore it has been necessary to position the discharge end of the nozzle some distance from the periphery of the water wheel and buckets in order that the nozzlel and needle parts when worn could be readily replaced, which construction has occasioned considerable loss in power, due to the distance between the discharge end of the nozzle and the periphery of the wheel. which has been necessary to enable the making of repairs.

By our present construction, which consists primarily in dividing the needle valve aiididischarge end of the nozzle body trans versely into co-operating separatable sections, we are enabled to position the discharge end or nozzle tip of anhydraiilic nozzle body in extreme close proximity to the path of travel ofthe wheel buckets to obtain the Vmaximum power from the issuingl stream, and to Venable the ready dismantling of the discharge tip and .needle valve for the replacement of the worn parts thereof without affecting the position of the wheelV or nozzle body.

With the above mentioned 4and other objects iii vieiv,fthe invention consists inthe novel construction and combination of parts hereinafter described, illustrated in the accompanyingy drawings and pointed outin the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construc- 1, 1922. Serial No. 598,310.

the preferred embodiment rof our invention f disclosingfthe nozzle tip and sectional needle valve. l

Fig. 2 is a view in end elevation partly in section, taken on line 2 2 of Fig. l.

Fig. 3 is a view in side elevation disclosing` the nozzle tip detached from the body and the needle point mounted on the end of the tie rod'.

Referringr more particularly to the drawings, wherein like characters of reference designate corresponding partsl indicates a tubular nozzle body provided with a water inlet openingr 2 at one side thereof and a disk charge opening 3 at the end of the body. The opening 3 is surrounded by a flange 4:

and over the opening' is removably posi tioned a nozzle tip 5 annularly flanged at its base, as at 6, and retained in position over the discharge opening v by a sectionalr retaining ring' 7. Through openings in the retaining ring are adapted to pass the re-` taining' studs 8 carried by said flange and nuts 9 are adapted to force thei'ing; towards said flange -t and cause the engagement of the ring' flange l0 to co-operate with the flange 6 to provide a leak-proof joint between the edge of the nozzle tip 5 and the opening' 3.

The nozzle tip which terminates inthe discharge opening,T l1 mounts a needle seatk ring 12 threaded Vinto or bolted to said discharge opening.

it will he observed that the discharge end of the nozzle body mounts 'the removable nozzle tip 5 and seat ring l2, the nozzle tip being readily renioif'ed from th-e body by removing` the sections of the retaining ring- 7 from over the studsS.

ln alignment with the opening 3 the nozzle. body 1 'isr provided with a-needle valve guide opening 13 within which is removably held a bearing sleeve Min which bearing sleeve is mounted to reciprocate the cylindrical guide end' l5 of the regulating,r valve 16. A gland I7 at the outer end of the bearing sleeve prevents leakage between the guide end of the valve 1G and the bearing` sleeve. The interior of the valve 1G is preferably hollow as at 18 and is provided with a tubular bore 19 disposed longitudinally thereof.

Within the main chamber of the nozzle body l the valve 1G is formed with a contracted stem 26 and at its outer end carries the hollow head 27. The head in the present structure is formed in three sections 27, 20 and 21, which provide the well known form of needle tip or valve employed in hydraulic nozzles, and the wall of the section 20 is adapted to engage the seat ring 12, as illustrated.

Within the bore 19 and disposed longitudinally of the valve 16 isa tie rod 22 having threaded connection at its outer end with the base of the needle point 21, and said rod, when the same is placed under tension, is adapted to draw the meeting edges of sections 27, 20, 15 and 21 into tight contact. The rear threaded end of the rod 22 extends through an opening in the rear of the guide 15 and on the same is threaded a nut or talieup 23 which when adjusted ,is adapted to place the rod 22 under tension.

On the release of the nut 23 the rod 22 may be rotated to release the forward end thereof from the base of the needle point by the operator imparting rotative movement to the rod by positioning a key or other tool over the polygonal end 24 of the rod. If desired, a loclr nut or guard 25 adapted for operating the valve in any desired manner may be secured to the projecting end of the rod 22 and may be constructed to conceal the polygonal end 24 thereof.

The regulating valve 16 is usually supported only at its rear end leaving` its needle end open and affording but little obstruction to the passage or iiow of water through the nozzle.

It will be observed that when replacement or repair of the needle end of the regulating valve or of the nozzle tip is` necessary, the needle end of the valve may be removed in sections and the nozzle tip may be dismantled in sections and when repairs are effected, the parts may be sectionally assembled.

' Having thus described oui` inventiongvhat we claim asnew and desire to protect by Letters Patent is 1. Aneedle valve for hydraulic nozzles, including a body having an enlarged head and terminating` in a needle point, said head in rear of said needle point being divided transversely into a plurality of separatable sections, and means for detachably securing said sections together with their edges in engaging relation.

2. A needle valve for hydraulic nozzles, including a body having an enlarged head and terminating` in a needle point, said head in rear of said needle point being divided transversely into a plurality of separatable sections, and a tie rod disposed longitudinally within said body for detachably uniting said sections.

3. A needle valve for hydraulic nozzles, including a body having an enlarged head terminating in a detachable needle point, said head in rear of said needle point being divided transversely into a plurality of separatable parts, and a tie rod disposed longitudinally within said body and detachably-secured to the needle point part of the head, said rod projecting from the rear of said body, and means for creating a tension on said rod for detachably retaining said parts together.

4. A needle valve for hydraulic nozzles including aV cylindrical body, an enlarge(` needle head carried at one end thereof, said head including a needle point and a plurality of co-operating sections in rear thereof capable of separation one from the other, and means within said body for retaining said sections in assembled relation.

5. An hydraulic nozzle construction comprising a tubular nozzle, a nozzle tip detachably secured to the-discharge end of said nozzle, a needle valve seating ring detachably secured to said tip, and a valve within said nozzle formed with a needle head consisting of a needle point and a plurality of separatable sections, one of said sections in rear thereof adapted for seating against said ring.

6. An hydraulic nozzle construction comprising a tubular nozzle formed at one end with a discharge opening, a valve guide chamber at its opposite end in alignment with said discharge opening, a nozzle tip removably positioned over the discharge opening of said nozzle, and a sectional ring for detachably securing said nozzle tip to said nozzle.

7. An hydraulic nozzle construction comprising a tubular nozzle mounting a valve seat ring formed with a discharge opening, a'needle valve within said nozzle for controlling said discharge opening, the discharge end of said nozzle adapted for separation 'on transverse lines into a plurality of co-operating separatable sections, said needle valve at its point of co-operation with said discharge opening being divided transversely into a plurality of interconnected separatable sections, and a guide for said valve.

In testimony whereof we have signed our names to this specification.

` WILLIAM L. PARKER. ELY C. IIUTCHINISON. 

